US7270619B2 - Linear belt actuator - Google Patents

Linear belt actuator Download PDF

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Publication number
US7270619B2
US7270619B2 US10/481,870 US48187004A US7270619B2 US 7270619 B2 US7270619 B2 US 7270619B2 US 48187004 A US48187004 A US 48187004A US 7270619 B2 US7270619 B2 US 7270619B2
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US
United States
Prior art keywords
belts
teeth
studs
linear actuator
actuating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime, expires
Application number
US10/481,870
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English (en)
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US20040220004A1 (en
Inventor
Joël Bourc'His
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Serapid France
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Serapid France
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Assigned to SERAPID FRANCE reassignment SERAPID FRANCE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOURC'HIS, JOEL
Publication of US20040220004A1 publication Critical patent/US20040220004A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/02—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions
    • B66F3/06—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00—Driving-belts
    • F16G1/28—Driving-belts with a contact surface of special shape, e.g. toothed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/18—Chains having special overall characteristics
    • F16G13/20—Chains having special overall characteristics stiff; Push-pull chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • F16H19/0636—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member the flexible member being a non-buckling chain

Definitions

  • the present invention relates to a linear actuator which can transmit tractive forces and also thrust forces, in that case behaving as a unitary rigid bar
  • Thrust chains suitable for performing this function have already been proposed. Thrust chains of this type have already been described, for example, in the documents FR-1 297 285 and FR-2 061 884.
  • chains are conventionally constituted by a series of links articulated to one another by means of pins that are arranged transversely.
  • Each link comprises two substantially parallel flanges which are pierced, respectively, by two holes for receiving the articulation pins and each of which is equipped with an extension defining a front transverse active face and a rear transverse active face which are caused to bear against the rear and front transverse active faces, respectively, of the flanges of the adjacent links when the portion of chain of which the links in question form part extends along a straight line.
  • Thrust chains of this type are driven, in the region of a curved end, by a device comprising a casing, a rotary pinion which has its axis parallel to the articulation pins of the links and is mounted in the casing and on which the chain is wound, as well as idle rollers for guiding the links of the chain around the rotary pinion.
  • Thrust chains of this type can transmit tractive and thrust forces in a satisfactory manner in any direction, including upwards, but have a fundamentally sophisticated configuration.
  • thrust chains are suitable purely for actuating “heavy” mechanical parts and, up to now, a similar device which is designed to enable changes in direction to be performed in small automatic mechanisms has never been proposed.
  • the object of the present invention is to fill this gap by proposing a linear actuator of the above-mentioned type which is characterized in that it comprises two identical actuating bolts which are toothed on each of their faces and are provided, on a first of their faces, with uniformly-spaced studs which mesh by means of drive members in a manner such that the two actuating belts are independent upstream of the drive members whereas, downstream of those members, they are assembled integrally so as to define a portion which extends along a straight line and in which the linear actuator behaves as a unitary rigid bar.
  • actuating belts are preferably made of a flexible, reinforced plastics material and thus correspond to simple and inexpensive elements also having the advantage that they can be manufactured by moulding in a single piece.
  • the drive members are constituted by a casing enclosing two rotary pinions, that is, a drive pinion and a driven pinion, which engage one another and drive two endless caterpillar-type bands mounted on one side and on the other side of the actuating belts, respectively, and equipped on their outer faces with teeth which cooperate with the teeth situated on the second faces of those belts and are fitted between those teeth so as to translate the belts whilst squeezing them against one another so that their facing studs engage one another.
  • the casing of the drive members also contains guide surfaces for the actuating belts, which guide surfaces are designed to enable the belts to bend in the region of the endless caterpillar-type bands in order to cause them to face one another so that their respective studs can engage one another.
  • the studs of the actuating belts comprise two side faces as well as a front transverse active face and a rear transverse active face each having a double curvature.
  • the front and rear transverse active faces of a stud of one of the actuating belts are caused to bear against the respective rear and front transverse active faces, respectively, of two associated adjacent studs of the other actuating belt when the two actuating belts are assembled integrally.
  • the linear portion defined by the two actuating belts when they are assembled integrally should not include “voids” and, therefore, that the geometry of the actuating belts should be such that the shape and dimensions of the spaces between the studs should be identical to those of the studs.
  • the front and rear transverse active faces of the studs comprise a double shoulder forming an abutment.
  • the front and rear transverse active faces of the studs are separated by a substantially rectilinear, toothed longitudinal face.
  • the teeth of the longitudinal face of a stud of one of the belts are caused to cooperate with corresponding teeth of the section of the first face of the other belt situated between the two studs associated with that stud, whilst being fitted between those teeth, when the two actuating belts are assembled integrally.
  • the two rotary pinions are extended coaxially by respective toothed extensions of smaller diameter cooperating with respective idle auxiliary gears of the same diameter so as to drive the endless caterpillar-type bands.
  • the casing of the drive members may also advantageously contain at least a pair of positioning rollers having axes substantially perpendicular to the axes of the rotary pinions and engaging on one side and on the other side of a linear portion of the actuator defined by the two integrally assembled actuating belts, against the side faces of the studs of those belts.
  • FIG. 1 is a diagram showing the linear actuator, in which the upper portion of the casing of the drive members has been removed,
  • FIG. 2 shows the two actuating belts
  • FIG. 2 a is a section through FIG. 2 , taken in a plane indicated schematically by the axis II-II,
  • FIG. 3 shows a detail of the two actuating belts
  • FIG. 4 is a diagram showing the drive members, in which the upper portion of the casing of these members has been removed,
  • FIG. 5 is a section through FIG. 4 , taken in a plane indicated schematically by the axis V V, the actuating belts being positioned in the drive members,
  • FIG. 6 is a section through FIG. 4 taken in a plane indicated schematically by the axis VI VI, the actuating belts being positioned in the drive members.
  • the linear actuator comprises two identical actuating belts 1 , 1 ′ as well as drive members 3 which drive the actuating belts 1 , 1 ′ so as to translate them in one direction or in the other in accordance with the double arrows A, B and B′.
  • the two actuating belts 1 , 1 ′ are independent of one another whereas, in the upper portion of FIG. 1 , that is, downstream of the drive members 3 , the two belts 1 , 1 ′ are assembled integrally so as to define a portion which extends along a straight line and in which the linear actuator behaves as a unitary rigid bar.
  • the actuating belts 1 , 1 ′ are provided on each of their races 10 , 11 and 10 ′, 11 ′ with identical teeth 4 , 4 ′ which are caused, respectively, to fit between associated teeth in a manner which will be described in greater detail below.
  • a first face 10 , 10 ′ of the actuating belts 1 is also equipped with uniformly-spaced studs 2 , 2 ′ which are separated by toothed sections 5 , 5 ′.
  • Each stud 2 , 2 ′ comprises two side faces 6 , 6 ′ as well as a front transverse active face 7 , 7 ′ and a rear transverse active face 8 , 8 ′ having a double curvature.
  • the front and rear transverse active faces 7 , 7 ′, 8 , 8 ′ of the studs 2 , 2 ′ are separated by a substantially rectilinear toothed longitudinal face 20 , 20 ′.
  • the actuating belts 1 , 1 ′ have a geometry which is designed in a manner such that the shape and dimensions of the spaces between the studs 2 , 2 ′ are identical to those of the studs.
  • the front and rear transverse active faces 7 , 7 ′, 8 , 8 ′ of the studs 2 , 2 ′ also comprise a double shoulder 9 forming an abutment the function of which will also be explained below.
  • the drive members 3 comprise a casing 12 containing two rotary pinions 13 , 13 ′ of the same diameter and of axis X-X′, which engage one another.
  • one of these pinions 13 is a drive pinion and is connected to a motor, not shown, by a drive axle 14 projecting from the casing 12 , whereas the second rotary pinion 13 ′ is a driven pinion.
  • the rotary pinions 13 , 13 ′ are extended coaxially by respective extensions 15 , 15 ′ equipped with teeth 16 , 16 ′ and having a smaller diameter.
  • the toothed extensions 15 , 15 ′ cooperate, respectively, with two idle auxiliary gears 17 , 17 ′ of the same diameter and with parallel axes.
  • the rotary pinions 13 , 13 ′ equipped with the toothed extensions 15 , 15 ′ and the auxiliary gears 17 , 17 ′ also rotate two endless caterpillar-type bands 18 , 18 ′ the inner faces of which art equipped, for this purpose, with teeth corresponding to the teeth of the extensions 15 , 15 ′ and of the auxiliary gears 17 , 17 ′.
  • the outer faces of the two caterpillar-type endless bands 18 , 18 ′ also have teeth 21 , 21 ′ which can engage the teeth 4 , 4 ′ situated on the second faces 11 , 11 ′ of the two actuating belts 1 , 1 ′ in order to translate the belts in accordance with the arrows A, B and B′.
  • the casing 12 of the drive members 3 also contains guide surfaces 19 , 19 ′ for the two actuating belts 1 , 1 ′; the guide surfaces 19 , 19 ′ cooperate with the longitudinal faces 20 , 20 ′ of the studs 2 , 2 ′ of the belts in order to transfer the belts between the endless caterpillar-type bands 18 , 18 ′ or to disengage them therefrom, by bending them.
  • the actuating belts 1 , 1 ′ are squeezed against one another so that the studs 2 , 2 ′ mesh with one another and the two belts 1 , 1 ′ are assembled integrally in a portion extending along a straight line.
  • the front and rear transverse active faces 7 , 7 ′, 8 , 8 ′ of the studs 2 , 2 ′ of one of the actuating belts 1 , 1 ′ bear, respectively, against the rear and front transverse active faces 8 ′, 8 , 7 ′, 7 of the two associated adjacent studs 2 ′, 2 of the other actuating belt 1 ′, 1 ′ and the teeth 4 , 4 ′ of the longitudinal faces 20 , 20 ′ of the studs 2 , 2 ′ of one of the actuating belts 1 , 1 ′ engage, respectively, in the corresponding teeth of the respective section 5 ′ 5 of the other actuating belt 1 ′, 1 separating the two associated adjacent studs 2 ′, 2 , so that the two actuating belts are fitted together perfectly to define a unitary rigid bar.
  • the double abutment shoulders 9 provided on the transverse active faces 7 , 7 ′; 8 , 8 ′ prevent any transverse sliding of the adjacent studs 2 , 2 ′ relative to one another.
  • the casing 12 also encloses two pairs of positioning rollers 22 .
  • Each of these pairs is constituted by a combination of two positioning rollers 22 1 , 22 2 of axis Y-Y′ perpendicular to the axes X-X′ of the rotary pinions 13 , 13 ′.
  • These positioning rollers 22 1 , 22 2 engage against the side faces 6 , 6 ′ of the studs 2 , 2 ′ in order to ensure the correct positioning of the actuating belts 1 , 1 ′ when they are fitted together.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transmission Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Prostheses (AREA)
  • Valve Device For Special Equipments (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Actuator (AREA)
US10/481,870 2001-06-26 2002-06-26 Linear belt actuator Expired - Lifetime US7270619B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR01/08393 2001-06-26
FR0108393A FR2826422B1 (fr) 2001-06-26 2001-06-26 Actionneur lineaire a courroie
PCT/FR2002/002211 WO2003002892A1 (fr) 2001-06-26 2002-06-26 Actionneur lineaire a courroie

Publications (2)

Publication Number Publication Date
US20040220004A1 US20040220004A1 (en) 2004-11-04
US7270619B2 true US7270619B2 (en) 2007-09-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
US10/481,870 Expired - Lifetime US7270619B2 (en) 2001-06-26 2002-06-26 Linear belt actuator

Country Status (8)

Country Link
US (1) US7270619B2 (fr)
EP (1) EP1399683B1 (fr)
JP (1) JP4192089B2 (fr)
AT (1) ATE283988T1 (fr)
DE (1) DE60202148T2 (fr)
ES (1) ES2233848T3 (fr)
FR (1) FR2826422B1 (fr)
WO (1) WO2003002892A1 (fr)

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US20060219144A1 (en) * 2005-01-20 2006-10-05 Michael Phelan Telescoping mast having variable height locking and a chain erection mechanism with a cable management system
US20070023072A1 (en) * 2003-06-04 2007-02-01 Mathieu-Francois Agnello English cane for a person with mobility impairment
US20080264971A1 (en) * 2005-03-11 2008-10-30 Manfred Harre Dispensing Device
US20090026018A1 (en) * 2007-07-26 2009-01-29 Production Resource Group L.L.C Self Erecting Zipper Lift
US20090293196A1 (en) * 2008-05-28 2009-12-03 General Electric Company Positioning systems and methods
US20100051424A1 (en) * 2008-08-29 2010-03-04 Tsubakimoto Chain Co. Engagement chain
US20100229469A1 (en) * 2009-03-13 2010-09-16 Tsubakimoto Chain Co. Opening/closing unit and opening/closing unit for vehicle windows
US20110011542A1 (en) * 2009-07-14 2011-01-20 Seiko Epson Corporation Screen
US20110047700A1 (en) * 2009-08-25 2011-03-03 Tobias Klemm Longitudinal Drive for Patient Support Systems
US20110168737A1 (en) * 2010-01-08 2011-07-14 Prince Castle Inc. Rodless dispenser for extrudable materials and having a contents indicator
US20110168742A1 (en) * 2010-01-08 2011-07-14 Prince Castle, Inc. Piston and piston rod for a rodless dispenser
US20110192133A1 (en) * 2010-02-10 2011-08-11 Prince Castle, Inc. Push chain with a bias spring to prevent buckling
US20110225903A1 (en) * 2010-03-22 2011-09-22 Said Lounis Telescopic mast system
US20120024091A1 (en) * 2008-12-19 2012-02-02 Kawabuchi Mechanical Engineering Laboratory, Inc. Linear-motion telescopic mechanism and robot arm having linear-motion telescopic mechanism
US20120102850A1 (en) * 2010-10-29 2012-05-03 David George Kensinger Extendable/retractable support column
US20120167542A1 (en) * 2011-01-05 2012-07-05 Tsubakimoto Chain Co. Lifting engagement chain unit
US8376193B2 (en) 2010-01-08 2013-02-19 Prince Castle, LLC Rodless dispenser
US20130276422A1 (en) * 2011-01-05 2013-10-24 Tsubakimoto Chain Co. Meshing chain stopper
US20130312554A1 (en) * 2011-02-10 2013-11-28 Tsubakimoto Chain Co. Engagement chain type device for forward and backward movement operation
DE102014103164A1 (de) 2014-03-10 2015-09-10 Ge Sensing & Inspection Technologies Gmbh Schubkette mit elastischem Rückenband
US10183404B2 (en) 2014-01-24 2019-01-22 The Trustees Of The University Of Pennsylvania Linear motion device with extending tube for positioning
WO2019093718A1 (fr) * 2017-11-08 2019-05-16 삼성전자 주식회사 Dispositif d'extension de bras de robot et robot comprenant ledit dispositif
CN110307454A (zh) * 2019-07-29 2019-10-08 裴学华 链齿式立杆组合
US20190382231A1 (en) * 2018-05-28 2019-12-19 Deutsches Zentrum für Luft- und Raumfahrt e.V. Apparatus for unfolding a mast
US10834944B2 (en) 2016-09-14 2020-11-17 Allpax Products Llc Retort load/unload system and method
US20220265011A1 (en) * 2021-02-22 2022-08-25 Casey P. Coe Wearable multipurpose umbrella
US20230092086A1 (en) * 2021-09-23 2023-03-23 Jefferson Romais Extendable and retractable support structure
US11661761B2 (en) 2018-03-22 2023-05-30 Tower Solutions, Llc Mobile tower for transportation and remote deployment

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IES20020132A2 (en) * 2002-02-21 2003-04-16 Simon Betson An actuator
GB0210605D0 (en) 2002-05-09 2002-06-19 Glaxo Group Ltd A fluid dispensing device
US7694486B2 (en) 2003-12-12 2010-04-13 Alliant Techsystems Inc. Deployable truss having second order augmentation
US8042305B2 (en) * 2005-03-15 2011-10-25 Alliant Techsystems Inc. Deployable structural assemblies, systems for deploying such structural assemblies
US7694465B2 (en) * 2005-04-08 2010-04-13 Alliant Techsystems Inc. Deployable structural assemblies, systems for deploying such structural assemblies and related methods
JP4822734B2 (ja) * 2005-04-12 2011-11-24 株式会社椿本チエイン リフター装置
US20090064601A1 (en) * 2006-02-08 2009-03-12 Five Y's Pty Ltd Structural member
ITBO20070066A1 (it) * 2007-02-01 2008-08-02 Franceschi Daniele De Serratura polifunzione e servomotore ad organo attuatore avvolgibile su rocchetto intercambiabile
DE102010020410A1 (de) * 2010-05-12 2011-11-17 Gröninger Antriebstechnik GmbH & Co. KG Bandantrieb für Zug- und Druckbeanspruchung
JP5079892B2 (ja) * 2011-01-12 2012-11-21 株式会社椿本チエイン 噛合チェーン式進退作動装置
US8904722B2 (en) * 2013-03-14 2014-12-09 Nathan H. Smith Structures with interlocking components
CN107618810A (zh) * 2017-09-28 2018-01-23 湖州梦琪服饰有限公司 一种再生革原料输送装置
DE102018113019A1 (de) 2018-05-30 2019-12-05 Conny Glogger Linearachse zur Übertragung von Zug- und Druckkräften, eine Portalanordnung und deren Verwendung
FR3095024B1 (fr) * 2019-04-10 2021-08-06 Serapid France Actionneur multilineaire rigide a brin souple
DE102019126671A1 (de) * 2019-10-02 2021-04-08 Bayerische Motoren Werke Aktiengesellschaft Schubriemeneinheit mit zwei Riementerminals
KR20210049313A (ko) * 2019-10-25 2021-05-06 엘지디스플레이 주식회사 표시 장치
DE102020105040B4 (de) * 2020-02-26 2023-08-10 Otto-Von-Guericke-Universität Magdeburg Stellmechanismus und Verfahren zu dessen Betrieb

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US2554300A (en) * 1947-08-29 1951-05-22 Hayakawa Yaichi Interlocking chain stanchion
US2987932A (en) * 1956-01-12 1961-06-13 Wilhelm Herm Muller & Co Komma Elastic tooth means
US3012635A (en) * 1958-06-06 1961-12-12 Willard E Blain Chain column hoist
US3587216A (en) * 1968-08-26 1971-06-28 Hi Gear Harvester Co Celery harvester
US3645146A (en) * 1969-09-29 1972-02-29 Tony Nagin Interlocking chain structure
US3792952A (en) * 1972-05-09 1974-02-19 M Hamon Sheet forming device
JPS5237668A (en) 1975-09-19 1977-03-23 Masao Hirozumi Chain-made pushed out pole
US4634410A (en) * 1982-02-26 1987-01-06 Industrie Pirelli S.P.A. Toothed-pulley for transmission with a toothed-belt
US4726247A (en) * 1984-05-24 1988-02-23 Hormann Kg Antriebs- Und Steuerungstechnik Gear for converting a rotational into a translational motion
US5347770A (en) * 1990-07-16 1994-09-20 Polytech Technical Services Pty. Ltd. Extendable mast support system
US5355643A (en) * 1991-10-04 1994-10-18 Alain Burri Sa Transformable structural element
US5303817A (en) * 1993-06-25 1994-04-19 The Laitram Corporation Drive system for modular link conveyor belts
US5803418A (en) * 1994-04-14 1998-09-08 Bbd, S.A. Convertible structural element
EP0799788A1 (fr) 1994-12-19 1997-10-08 Sanin Boruto Seisakusho Co. Ltd. Element prolongateur en forme de barre
WO1998046903A1 (fr) 1997-04-15 1998-10-22 Andreas Grasl Dispositif de transmission d'une force, notamment d'une force de compression, le long d'un trajet sensiblement rectiligne
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Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070023072A1 (en) * 2003-06-04 2007-02-01 Mathieu-Francois Agnello English cane for a person with mobility impairment
US7621078B2 (en) * 2005-01-20 2009-11-24 Drs Sustainment Systems, Inc. Telescoping mast having variable height locking and a chain erection mechanism with a cable management system
US20060219144A1 (en) * 2005-01-20 2006-10-05 Michael Phelan Telescoping mast having variable height locking and a chain erection mechanism with a cable management system
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FR2826422B1 (fr) 2003-11-14
JP2004530855A (ja) 2004-10-07
FR2826422A1 (fr) 2002-12-27
ES2233848T3 (es) 2005-06-16
ATE283988T1 (de) 2004-12-15
EP1399683A1 (fr) 2004-03-24
JP4192089B2 (ja) 2008-12-03
WO2003002892A1 (fr) 2003-01-09
US20040220004A1 (en) 2004-11-04
DE60202148D1 (de) 2005-01-05
EP1399683B1 (fr) 2004-12-01
DE60202148T2 (de) 2005-10-27

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